Now, had I never read this part I would have never had any intrest in trying Orbis. mainly because "I usually stop my games after renaissance" tooI started modding civ with a prersonal mod to standard warlords (and later BtS) to enhance religions and especially medieval era. I feel like the designers knew nothing of the real tech advancements, warfre & economy of medieval states. Well, I know mostly of europe & steppes, but ask me about southern africa and I will know much much less...
Also, I am bored by napoleonic and later eras. Simply bored. So I usually stop my games after renaissance.

So perhaps something as simple as a nice explanation of what Orbis does and, more importantly, why it does it or what your goals are. Maybe you already have this somewhere but I never found it myself.
Oh, and if it matters apparently my mapscript will have full native support for Orbis (and Wild Mana, but enough about them) soon as a side effect of adding full native support for RifE, feel free to bug me if there is something you are looking for specifically to help get better worlds for the type of game you expect from Orbis.